Strawberry plant named &#39;DrisStrawThirtyOne&#39;

ABSTRACT

A new and distinct variety of strawberry plant named ‘DrisStrawThirtyOne’ particularly characterized by large fruit with sweet juicy flavor, conic shape and full red glossy color is disclosed.

GENUS AND SPECIES

Fragaria×ananassa

VARIETY DENOMINATION

‘DrisStrawThirtyOne’

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry varietydesignated ‘DrisStrawThirtyOne’ and botanically known asFragaria×ananassa. This new strawberry variety was discovered in VenturaCounty, California in October 2007 and originated from a cross betweenthe proprietary female parent ‘DrisStrawThree’ (U.S. Plant Pat. No.19,673) and the proprietary male parent ‘508M172’ (unpatented). A singleplant was selected for asexual propagation via tissue culture andvegetative cuttings in Shasta County, California in 2007.

‘DrisStrawThirtyOne’ underwent further testing in Ventura County,California for five years (2008-2012). The present invention has beenfound to retain its distinctive characteristics through successiveasexual propagations via stolons and tissue culture.

Plant Breeder's Rights for this variety have not been applied for.‘DrisStrawThirtyOne’ has not been made publicly available or sold morethan one year prior to the filing date of this application.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishingcharacteristics of this new cultivar when grown under normalhorticultural practices in Ventura County, California.

1. Large fruit with sweet juicy flavor;

2. Conic shape; and

3. Full red glossy color.

DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the newvariety at various stages of development. The colors shown are as trueas can be reasonably obtained by conventional photographic procedures.The photographs were taken from four-month-old plants.

FIG. 1 shows overall plant habit including fruit at various stages ofdevelopment.

FIG. 2 shows upper and lower surfaces of the leaves of the plant withthree leaflets.

FIG. 3 shows both upper and lower surfaces of the flowers.

FIG. 4 shows the whole fruit.

FIG. 5 shows the fruit in longitudinal cross-section.

DESCRIPTION OF THE NEW VARIETY

The following detailed descriptions set forth the distinctivecharacteristics of ‘DrisStrawThirtyOne’. The data which define thesecharacteristics is based on observations taken in Ventura County,California from 2008to 2012. This description is in accordance with UPOVterminology. Color designations, color descriptions, and otherphenotypical descriptions may deviate from the stated values anddescriptions depending upon variation in environmental, seasonal,climatic, and cultural conditions. ‘DrisStrawThirtyOne’ has not beenobserved under all possible environmental conditions. The botanicaldescription of ‘DrisStrawThirtyOne’ was taken from four-month-oldplants. Color references are primarily to the R.H.S. Colour Chart of TheRoyal Horticultural Society of London (R.H.S.) (2007edition).Descriptive terminology follows the Plant Identification Terminology, AnIllustrated Glossary, 2^(nd) edition by James G. Harris and MelindaWoolf Harris, unless where otherwise defined.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

-   Classification:    -   -   Species.—Fragaria×ananassa.        -   Common name.—Strawberry.        -   Denomination.—‘DrisStrawThirtyOne’-   Parentage:    -   -   Female parent.—The proprietary variety ‘DrisStrawThree’            (U.S. Plant Pat. No. 19,673).        -   Male parent.—The proprietary variety ‘508M172’ (unpatented).-   Plant:    -   -   Height.—28.7 cm.        -   Diameter.—48.3 cm.        -   Number of crowns/plant.—3.        -   Habit.—Upright.        -   Density of individual plant.—Medium.        -   Vigor (health and hardiness of plant).—Strong.-   Terminal leaflets:    -   -   Size.—Medium Length: 8.0 cm Width: 7.2cm Length/width ratio:            1.1.        -   Number of teeth/terminal leaflet.—21.        -   Shape of teeth.—Obtuse — serrate to crenate.        -   Color.—Upper surface: RHS N137A (Dark green) Lower surface:            RHS148C (Medium yellow-green).        -   Shape in cross section.—Concave.        -   Blistering.—Weak.        -   Glossiness.—Medium.        -   Number of leaflets.—Three only.        -   Shape.—Orbicular.        -   Base shape.—Rounded.        -   Apex descriptor.—Rounded.        -   Variegation.—Absent.        -   Margin.—Crenate.        -   Margin profile.—Flat.-   Petiole:    -   -   Length.—Long; 18.5 cm.        -   Diameter.—3.36 mm.        -   Pubescence.—Absent or very sparse.        -   Pose of hairs.—Outwards — horizontal.        -   Color.—RHS144B (Medium yellow-green).-   Petiolule:    -   -   Length.—9.06 mm.        -   Diameter.—1.51 mm.        -   Bract frequency.—0.        -   Pubescence.—Absent or very sparse.        -   Pose of hairs.—Outwards — horizontal.        -   Color.—RHS144A (Medium yellow-green).-   Stipule:    -   -   Length.—2.9 cm.        -   Width.—7.82 mm.        -   Pubescence.—Dense.        -   Stipule anthocyanin coloration.—Weak; RHS 68B (Medium            red-purple).-   Stolon:    -   -   Number.—Medium.        -   Average number of daughter plants per plant.—13.        -   Stolon anthocyanin.—Very strong; RHS 47B (Red).        -   Diameter at bract.—3.30 mm.        -   Thickness.—Very thick.        -   Pubescence.—Dense.-   Inflorescence:    -   -   Position relative to foliage.—Beneath.        -   Number of flowers.—Medium.        -   Time of flowering (50% of plants at first flower).—Early.        -   Flower size.—Medium.        -   Diameter.—27.38 mm.        -   Petals.—Shape: Orbicular Apex: Rounded Base: Concave —            convex Margin: Entire Spacing: Overlapping Length: 14.04 mm            Width: 14.32 mm Length/width ratio: 1.0 (As long as broad)            Petal number per flower: 5 Color (upper surface): RHS NN155A            (White).        -   Calyx.—Diameter: 32.92 mm Diameter relative to corolla:            Larger Inner calyx diameter relative to outer: Same size            Insertion of calyx: Level Pose of calyx segments: Reflexed —            upwards Size of calyx in relation to fruit: Slightly larger            Adherence of calyx: Strong.        -   Sepal.—Shape: Elliptical Apex: Convex Margin: Entire Length:            13.21 mm Width: 5.81 mm Sepal number per flower: 10.        -   Receptacle color.—RHS 151B (Medium yellow-green).        -   Stamen.—Present Anther color: RHS 163B (Medium            greyed-orange).        -   Pedicel.—Attitude of hairs: Upwards.-   Fruiting truss:    -   -   Length.—21.8 cm.        -   Diameter at base of truss.—4.66 mm.        -   Number of berries per fruiting truss.—5.        -   Attitude at first picking.—Prostrate.        -   Pubescence.—Dense.        -   Pose of hairs.—Outwards — horizontal.        -   Color at base of truss.—RHS 144B (Medium yellow-green).-   Fruit:    -   -   Relative fruit size.—Large.        -   Length.—47.21 mm.        -   Width.—43.27 mm.        -   Length/width ratio.—1.1.        -   Fruit hollow length.—16.16 mm.        -   Fruit hollow width.—9.88 mm.        -   Fruit hollow length/width ratio.—1.6 (Longer than broad).        -   Fruit hollow center (cavity).—Small.        -   Weight (per individual berry).—30.8 g.        -   Predominant fruit shape.—Conical.        -   Difference in shape between primary and secondary            fruits.—Slight.        -   Evenness of fruit surface.—Even or very slightly uneven.        -   Fruit skin color.—RHS 46A (Dark red).        -   Evenness of fruit color.—Even or very slightly uneven.        -   Fruit glossiness.—Medium.        -   Achenes.—Insertion of achenes: Level with surface Coloration            (sunward side of berry): RHS 20B (Medium yellow-green)            Coloration (shaded side of berry): RHS 153B (Medium            yellow-green) Number per berry: 132 Weight (weight of            achenes divided by total # seed): 0.000968365 g Width of            band without achenes: Narrow.        -   Firmness of flesh (when fully ripe).—Firm.        -   Color of flesh (excluding core).—RHS 34A (Medium red).        -   Color of core.—RHS 155B (White).        -   Evenness of flesh color.—Slightly uneven.        -   Distribution of flesh color.—Only marginal.        -   Sweetness.—Medium.        -   Acidity.—Weak.        -   Texture when tasted.—Fine.        -   Type of bearing.—Fully everbearing — fully remontant.        -   Grams of fruit/plant.—524.0 g.        -   Harvest interval.—August — mid-January.        -   Harvest maturity.—Early.-   Disease, pest, and stress resistance:    -   -   Tetranychus urticae.—Moderately susceptible.        -   Tarsonemus pallidus.—Moderately susceptible.        -   Aphelenchoides fragariae.—Moderately susceptible.        -   Pratylenchus penetrans.—Moderately susceptible.        -   Ditylenchus dipsaci.—Moderately susceptible.        -   Anthonomus rubi.—Moderately susceptible.        -   Aphis spp. (Aphids).—Moderately susceptible.        -   Lygus hesperus (Lygus bug).—Moderately susceptible.        -   Botrytis fruit rot.—Moderately susceptible.        -   Powdery mildew.—Moderately resistant.        -   Verticillium wilt.—Moderately susceptible.        -   Leather rot.—Moderately susceptible.        -   Ramularia tulasnei (Leaf spots).—Moderately susceptible.        -   Black root rot.—Moderately susceptible.        -   Strawberry mottle virus.—Moderately susceptible.        -   Xanthomonas fragariae.—Moderately susceptible.        -   High pH.—Moderately resistant.        -   High soil salt levels.—Moderately resistant.

COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES

When ‘DrisStrawThirtyOne’ is compared to the proprietary female parent‘DrisStrawThree’ (U.S. Plant Pat. No. 19,673), ‘DrisStrawThirtyOne’ hasan upright habit with medium density, medium glossy leaves, and conicalshaped fruit, whereas ‘DrisStrawThree’ has a dense, flat globose habit,weakly glossy leaves, and almost cylindrical shaped fruit. Additionally,‘DrisStrawThirtyOne’ has a earlier fruiting and firmer fruit than‘DrisStrawThree’.

When ‘DrisStrawThirtyOne’ is compared to the proprietary male parent‘508M172’ (unpatented), ‘DrisStrawThirtyOne’ has a more compact planthabit, larger and darker fruit, better rain tolerance, and higher yieldthan ‘508M172’.

When ‘DrisStrawThirtyOne’ is compared to the commercial variety‘DrisStrawTwentyOne’ (U.S. Plant patent application No. 13/136,089),‘DrisStrawThirtyOne’ has medium dense plants with weak leaf blisteringand medium stolon number, whereas ‘DrisStrawTwentyOne’ has dense plantswith medium leaf blistering and few stolons.

We claim:
 1. A new and distinct variety of strawberry plant named‘DrisStrawThirtyOne’ as described and shown herein.